Live · updated daily from USGS
Swimmable water near you
2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (17 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 929
- Warm · above 86°F · 215
- You
A map of the United States with one coloured dot per USGS sensor reporting a live water temperature. The readings are listed below.
Nearest live readings
The closest USGS sensors currently reporting a water temperature, nearest first.
- Raritan Bay at Keansburg NJUSGS gauge · New Jersey76°F8.2 mi17 hrs ago
- Manasquan River near Allenwood NJUSGS gauge · New Jersey · 48 ft³/s70°F13 mi17 hrs ago
- Arthur Kill at Perth Amboy NJUSGS gauge · New Jersey76°F13 mi17 hrs ago
- Watson Creek at Manasquan NJUSGS gauge · New Jersey76°F16 mi17 hrs ago
- 78°F21 mi17 hrs ago
- Millstone River at Blackwells Mills NJUSGS gauge · New Jersey · 509 ft³/s77°F25 mi17 hrs ago
- Newark Bay at PVSC at Newark NJUSGS gauge · New Jersey78°F26 mi17 hrs ago
- Crosswicks Creek at Extonville NJUSGS gauge · New Jersey · 86 ft³/s74°F27 mi17 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.8(1,597)Manasquan Reservoir
Park with a multi-use trail around a reservoir, plus water recreation such as boating & fishing.
11 mi from your location
4.7(207)Avon Beach
This scenic public beach features a wide sandy beachfront, expansive boardwalk & nearby concessions.
12 mi from your location
4.7(2,525)Avon-by-the-Sea Public Beach
Well-maintained sandy beach with surfing & swimming areas, seasonal lifeguards & restrooms.
12 mi from your location
4.5(11)Wreck Pond
Watershed preservation site & wildlife habitat with eco-tourism & volunteer activities.
14 mi from your location
4.7(266)Sea Girt Beach
White-sand beach with lifeguards & a historic lighthouse, plus a boardwalk with gazebos & benches.
15 mi from your location
4.5(611)Fisherman's Cove Conservation Area
Sizable river beachfront park with fishing access, known for being leashed-dog-friendly.
16 mi from your location
4.6(92)Lake Carasaljo
Prominent lake featuring multiuse trails, ice-skating, fishing, swimming & a place in urban legend.
17 mi from your location
4.4(136)Perrineville Lake Park
This large natural area features multi-use trails, wildlife viewing & a fishing pond.
17 mi from your location
4.6(3,389)Clove Lakes Park
Lakes, ponds & trees plus modern recreational areas including playgrounds & an outdoor skating rink.
20 mi from your location
4.6(1,897)Silver Lake Park
209-ac. public park with lake, 18-hole golf course, tennis courts, sports fields, trails & more.
21 mi from your location
About this map
Every pin is a live reading from a USGS real-time monitoring station, captured in a daily snapshot. Colours follow the site’s cold-water-safety thresholds and describe the water at that one sensor — usually a river or stream gauge, not a swim beach — so treat them as a guide to what the water is doing nearby, not a verdict on a specific spot. Readings are provisional and can be revised by the USGS. Your location only sorts this page: the coordinates appear in the address bar (rounded to about a mile) and are not saved to an account or our database.
Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.